česky | english
belts and
transmission systems
Shopping basket is empty

SIT Shaft Couplings

SIT are shaft couplings of an Italian manufacturer designed for the transmission of high torques and speeds.

Shaft couplings are available in various series and designs from the smallest elastic to large flexible, disc and gear couplings.

TRASCO (Elastic)

Flexible jaw couplings with a plastic star-shaped spring element.

TRASCO ES (Zero-Backlash)

Zero-backlash flexible couplings with a plastic star-shaped spring element.

SITEX (Gear)

Gear coupling with steel hubs and a nylon sleeve with internal teeth.


Gear coupling a nylon flange with internal teeth designed to connect flywheel, according to SAE J620.


Torsionally stiff disc couplings with steel construction and stainless steel disc packs.


All-metal torsionally rigid bellows couplings.

Couplings Fields of Use

SIT shaft couplings are designed for connecting two shafts in all industries.

They are used in many machines, from small precision instruments and machines to heavy drives in conveyor system drives, packaging machines and other drives in the food, chemical, glass, paper, woodworking and rubber industries.

Shaft Coupling Manufacturer Profile

logo SIT

The group SIT S.p.A develops, engineers, manufactures and distributes high quality solutions and components for power transmission for industrial applications of excellence worldwide, with the aim of increasing the productivity of its customers’ machines and systems. With operations on 3 continents, SIT manufactures pulleys, rubber and polyurethane belts, drive couplings, locking assemblies and a wide range of accessories.

SIT belongs to a large industrial group that dates as far back as 1838. Today, thanks to over 50 years of specific experience in power transmission and a close-knit team of highly qualified professionals, the Group engages in constant technological innovation in order to offer the best application solutions in mechanical power drives.

more information about manufacturer